I'm so very sorry you lost a rescue dog to osteosarcoma. That is what took the life of my third dog, Casey. Casey was around eight and he was misdiagnosed with low-back calcification until one day we returned from a walk that seemed normal. He walked into the kitchen and sat down and never walked again without assistance.
It's horrible and I am so sorry you experienced this.
You really expressed it: I am sick of dogs getting cancer. Your little pup was so young and it happened to him Obviously we are doing something wrong!
That was my original goal with Brendon, who someone abandoned (apparently. We can never know the whole story). His first two or three years were spent with a young girl who tried her best to take care of him but really couldn't. She couldn't afford his medical care, and she never walked him and left him tied up in the back yard or shut in her bedroom. Her heart was in the right place but she was very young and had no experience caring for a dog.
To her credit, she realized she was not giving him a very good life and allowed me to adopt him.
I really admire how you turned tragedy into action. Now I need to do the same. I really appreciate hearing your story and what you did about it.
Thank you so much.